FortiGuard Labs Threat Research

FortiGuard Labs Threat Research

How a Malicious Excel File (CVE-2017-0199) Delivers the FormBook Payload

Read how a malicious Excel file exploits CVE-2017-0199 to deliver FormBook malware via phishing.

By Shiyin Lin June 05, 2025

FortiGuard Labs Threat Research

Deep Dive into a Dumped Malware without a PE Header

Explore manual deployment of a PE header-corrupted malware in a controlled environment, its C2 communication, and actions performed on a compromised device. Read more.

By Xiaopeng Zhang and John Simmons May 29, 2025

FortiGuard Labs Threat Research

Infostealer Malware FormBook Spread via Phishing Campaign – Part II

Learn how the FormBook payload operates on a compromised machine, including the complicated anti-analysis techniques employed by this variant.

By Xiaopeng Zhang May 27, 2025

FortiGuard Labs Threat Research

Ransomware Roundup – VanHelsing

The VanHelsing ransomware was first identified in March 2025 and uses TOR sites for ransom negotiations and data leaks. Learn more.

By Shunichi Imano and Fred Gutierrez May 16, 2025

FortiGuard Labs Threat Research

Horabot Unleashed: A Stealthy Phishing Threat

FortiGuard Labs observed a phishing campaign "Horabot" resurfacing with a sophisticated multi-stage attack, blending phishing, credential theft, and propagation. Learn more.

By Cara Lin May 12, 2025

FortiGuard Labs Threat Research

Multilayered Email Attack: How a PDF Invoice and Geo-Fencing Led to RAT Malware

FortiGuard Labs highlights a malware campaign's increasing sophistication of attack methodologies, leveraging the legitimate functionalities of remote administration tools for malicious purposes. Learn more.

By Ran Mizrahi May 08, 2025

FortiGuard Labs Threat Research

FortiGuard Incident Response Team Detects Intrusion into Middle East Critical National Infrastructure

The FortiGuard Incident Response (FGIR) team recently investigated a long-term cyber intrusion targeting critical national infrastructure (CNI) in the Middle East, attributed to an Iranian state-sponsored threat group.

FortiGuard Labs Threat Research

Key Takeaways from the 2025 Global Threat Landscape Report

Read into how the adversary advantage is accelerating, which means organizations must change how they measure and manage risk.

FortiGuard Labs Threat Research

IngressNightmare: Understanding CVE‑2025‑1974 in Kubernetes Ingress-NGINX

Get an overview on how the CVE-2025-1974 works, a proof-of-concept demo of the exploit, along with outlined mitigations and detection strategies.

By Jamie Mcmurray April 23, 2025

FortiGuard Labs Threat Research

Infostealer Malware FormBook Spread via Phishing Campaign – Part I

FortiGuard Labs observed a phishing campaign in the wild that delivered a malicious Word document as an attachment. Learn more.

By Xiaopeng Zhang April 22, 2025